libtraceevent: Show what the failed expected tokens are
Instead of just showing a very cryptic message of what enum type was
expected and failed during parsing, at least include the name of said
type.
Link: https://lore.kernel.org/linux-trace-devel/20220221154418.2449fa19@rorschach.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
diff --git a/src/event-parse.c b/src/event-parse.c
index 2b346a5..11557b1 100644
--- a/src/event-parse.c
+++ b/src/event-parse.c
@@ -114,6 +114,22 @@
x++;
}
+static const char *get_event_type(enum tep_event_type type)
+{
+ switch (type) {
+ case TEP_EVENT_ERROR: return "ERROR";
+ case TEP_EVENT_NONE: return "NONE";
+ case TEP_EVENT_SPACE: return "SPACE";
+ case TEP_EVENT_NEWLINE: return "NEWLINE";
+ case TEP_EVENT_OP: return "OP";
+ case TEP_EVENT_DELIM: return "DELIM";
+ case TEP_EVENT_ITEM: return "ITEM";
+ case TEP_EVENT_DQUOTE: return "DQUOTE";
+ case TEP_EVENT_SQUOTE: return "SQUOTE";
+ }
+ return "(UNKNOWN)";
+}
+
static struct tep_print_arg *alloc_arg(void)
{
return calloc(1, sizeof(struct tep_print_arg));
@@ -1401,8 +1417,9 @@
static int test_type(enum tep_event_type type, enum tep_event_type expect)
{
if (type != expect) {
- do_warning("Error: expected type %d but read %d",
- expect, type);
+ do_warning("Error: expected type %d (%s) but read %d (%s)",
+ expect, get_event_type(expect),
+ type, get_event_type(type));
return -1;
}
return 0;
@@ -1412,8 +1429,9 @@
enum tep_event_type expect, const char *expect_tok)
{
if (type != expect) {
- do_warning("Error: expected type %d but read %d",
- expect, type);
+ do_warning("Error: expected type %d (%s) but read %d (%s)",
+ expect, get_event_type(expect),
+ type, get_event_type(type));
return -1;
}
